Dump-car construction



2 Sheets-Sheet l H. S. HART DUMP CAIR CONSTRUCTION Filed Nav. 14,

Sept. '25, 1Q-25.

, H. s. HART DUMP CARv CONSTRUCTION v Fnedfwv. 1'4. 192s 2 sheets-snee:2

. fiar ,f Har Patented Sept. 29, 1925.

UNITED STATES 1,555,203 PATENT OFFICE.

HARRY s. HART, or CHICAGO, ILLiNoIs.

DUMP-CAR CONSTRUCTION.

Application mea November 14, i923. serial No. 674,606.

, two ends of the car. If the lading to be depo'sited is relativelyheavy, such, for exampel, as rock ballast, the carrying capacity forsuch lading is limited not by the bulk thereof but by the weight.Ballast cars in common use limit the amount of rock ballast orotherheavy ballast to that which may be carried by said car at regions fromwhich dumping may be conveniently accomplished between the trucks. Whenit is desired to carry other lading such as coal,

which is lighter in weight, certain types of ballast cars are quiteinefcient inasmuch as they do not economically utilize the space overthe trucks.

An object of the present invention is to provide an eiiicient car forcarrying heavy lading such as rock ballast which should be depositedselectively between the rails or outside of the rails and for carryinglighter lading such as coal which need not be dumped between the rails.

A further object is to provide a car' utilizing materials which are noheavier than ordinarily provided in car construction which will operateefficiently as a ballast car for depositing ballast either between therails or outside of the rails and will present a maximum capacity forlighter lading.-

A further object is to provide a dump car .conforming to standardpractice which will at the two ends of the car l are illustrateddiagrammatically by the wheels thereof which are indicated by thereference numerals 4.-4. According to the illustrated embodiment of thepresent invention the car 1 is provided with dumping mechanism locatedbetween the trucks, said dumping mechanism comprising doors 5 5 whichare mounted for swinging movement about axes disposed longitudinally ofthe car. Referring to Figure l, a shaft 6 is provided carrying chains 77 for operating the doors 5 5. The details of construction of thedumping mechanism between the trucks need not be described hereininasmuch as such `details are well known to those skilled in the art andinasmuch as such details form no part of the present invention.

Adjacent to each end of the car is a floor 8, which floors slope towardthe adjacent ends of the doors 5 5. That is to say, said floors 8 are sosloped that lading located above said floors will tend to move towardthe doors 5 5 when said doors are opened.

VSaid floors 8 8 should be disposed at such an angle relative to ahorizontal plane that such lading as rock ballast will flow therefrom.'Ihat' is to say, the' angle should be such that the force of gravityacting upon rock ballast located above said floors will be suliicient toovercome the resistance to flow due to Contact between said floors 8 8and the ballast resting thereon. For this purpose it has been found byexperiment that the angularity of the floors 8 8 rela'- tive to ahorizontal plane may be approximately 45 when the car is designed forthe carrying of rock ballast.

At each end of the car above the trucks is a lloor, indicated bythenumeral `9. According to the embodiment illustrated in Figure 2, each ofthe floors 9 may comprise sloping portions for directing ladinglaterally of the car, said sloping portions having their apex along theline marked by the angle 10.l Swinging side doors 11 1l may be provided,controlled in any ,preferred way, for permitting lading to flow fromsaid floors 9 to the sides of the car.

Each sloping floor 8 extends to a line disposed transversely of thecar,4 which line lies above the corresponding truck illustrated bywheels 4 4. Cooperating with each slopin-g lioor 8 is the reverselysloping floor 12, each pair of said sloping floors 8 and l2 having theirapexkprotected by the angle: 13.

Thus the apex of the sloping floors 8 and 12 at each end of the car isbetween the bolsters 13. This location of the apex makes it possible toprovide sloping ioors which will be at the proper angle for elicicientlydischarging the load either through the end dumping portions of the car,or through the center dumping portions. The sloping floor 12 at each endof the car will direct lading disposed above said sloping i'ioor 12toward the corresponding floor 9 and doors 11-11 whereby lading at theends of the car may be discharged through said doors 11-11 laterally ofthe car. It will be obvious that the angle 13 and sloping floors 8 and12 at each end of the car will form shedding means for directing ladingeither to a region between the trucks to be dumped by the doors 5 5 orto a region over the trucks to be dumped by the doors 11 `11. Describedin other language, it may be stated that each of the floors 9 is alongitudinally extending A-shaped floor having its apex extendinginwardly, along a medial plane of said car, from the ends of said car toa point beyond the adjacent bolster 13; that is to say, the apexes oi'said A-shaped lioors extend to points between said bolsters. The iioors8 and 12 at each end of the car also provide A-shaped floors extendingtransversely of the car between the dumping mechanism 5 and thelongitudinally extending lioors 9. The transversely extending ioor ateach end of the car and its corresponding longitudinally extending floorform a T-construction, the head of which `T-construction lies betweenthe bolsters 13. The construction described and illustrated increasesthe capacity of a dump car a material amount over prior practice.

In operation, when it is desired to use the car for carrying rockballast or other heavy lading, said heavy lading will be deposited inthe car centrally thereof, being carried by the bottom portion betweenthe trucks and by the sloping floors 8 8. According to the illustratedembodiment of the present invention the limit of such heavy ladinglongitudinally of the car will be marked by the angles 13 13 locatedover the trucks. Said heavy lading may assume an angle otl reposeillustrated by the dashed line 14. It

'will be clear, however, that it it is desired to carry lading all ofwhich is to be directed vbetween the trucks, the capacity for such tweenthe sloping walls 8 and 12 being unused at this time.

By reason of the present construction a railway dump car is providedwhich has a maximum carrying capacity for light weight lading' andsacrifices none of the advantages attached to the ordinary type ofselective dump car.

Though a preferred embodiment has been described in detail, manymodifications will occur to those skilled in the art. It is intended inthis patent to cover all such modivfications that fall within the scopeof the invention as defined by the appended claims.

I claim:

1. A car ot the class described comprising a car body having ends andbolsters, load discharging means between an end of said car and one otlsaid bolsters, an A-shaped loor construction at said end o' said carhaving' its apex disposed longitudinally of said car for directinglading to said load discharging means, other load discharging meansbetween said holsters, and sloping ioors 'for directing lading towardsaid first mentioned iioors and to said other load discharging means,said sloping floors having an apex located between said bolsters.

2. A car of the class described comprisi ing a car body having ends andbolsters, load discharging meansbetween an end of said car and one ofsaid bolsters, an A- shaped floor construction at said end of said carhaving its apex disposed longitu-i dinally of said car for directingladingto said load discharging means, other load discharging meansbetween said bolsters, and sloping iioors for directing lading towardsaid lirst mentioned floors and to said other load discharging means,said sloping floors having an apex located between said bolsters, saidA-shaped lio'or construction being disposed in T relation with saidsloping floors. A p

8. A car of the class described comprising a car body, trucks mounted atthe two ends ot' said body for supporting same, dumping mechanismbetween said trucks for discharging lading from said car body, anA-shaped dumping Hoor construction over each of said trucks andextending longitudinally of said car, said A-shaped constructionproviding sloping portions arranged to deposit lading laterally of saidcar body, bolsters extending transversely of said car body, saidA-shaped floor constructions being located between the regions of saidbolsters and the ends of said car body, and other A- shaped floorconstructions arranged transversely of said carbody, the apexes of saidtransversely disposed floor constructions being located between saidbolsters.

A. A car of the class described comprising a car body, trucks mounted atthe two ends of said body for supporting same, dumping mechanism betweensaid trucks for discharging lading from said car body, an A-shapeddumping floor construction over each of said trucks and extendinglongitudinally of said car, said A-shaped construction providing slopingportions arranged to'deposit lading laterally of said car body, bolstersextending transversely of said car body, said A-shaped floorconstructions being located between the regions of said bolsters and theends of said car body, and other A-pshaped floor const-ructions arrangedtransversely of said car body, the apexes of said transversely disposedfloor constructions being located between said bolsters, saidlongitudinally extending A-shaped floor constructions being disposed inT relationship with the corresponding transversely disposed A- shapedfloor constructions.

5. A car of the class described having sides and ends, longitudinallyextending A- shaped floors having their apexes extending inwardly fromthe ends of the car to points beyond the bolsters of said car, dumpingmechanism between the trucks of said car, and A-shaped floors extendingtransversely of the car and located between said dumping mechanism andsaid longitudinal A-shaped ioors, the apexes of said transverse A-shapedfloors being disposed between said bolsters.

6. A car of the class described having sides and ends, trucks at the twoends of said car and bolsters located over said trucks, an A-shaped ioorlocated at each end of said car, said floor having an apex locatedlongitudinally of said car and having downwardly and laterally slopingportions, said apex extending from the end of said car to a pointadjacent to and beyond the bolster of said car, and a transverse A-shaped floor adjacent to each end of said car extending across said carand connected to the inner end of the adjacent longitudinally extendingfloor, said transverse A-shaped tloor having its apex between saidbolsters.

7. A car having sides and ends, bolsters arranged transversely of saidcar adjacent to the ends thereof, a longitudinally disposed A-shapedfloor extending from each end of said car, the apex and upper part ofsaid ioor extending beyond the corresponding bolster and thelower partof said floor ending adjacent to said bolster, and a transverse A-shapedfloor mounted adjacent to the inner ends of said longitudinal A-shapedfloors, the apexes of said transverse A- shaped floors being betweensaid bolsters, said longitudinal A-shaped floors being connected in Trelationship with said transverse A-shaped floors.

Signed at Chicago, Illinois, this 7th day of November, 1923.

HARRY S. HART.

